Ash-sifting apparatus.



PATENTED MAY-26, 1908.

J. L. LAVERTY. ASH SIFTING APPARATUS.

APPLICATION FILED .TUHE 3.1907.

3 SHEETS-SHEET l.

No. 888,827. PATENTED MAY 26,1908. J.L.LAVBRTY.

ASH SIFTING APPARATUS.

APPLICATION FILED JUNE 3. 1907.

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PATENTED MAY 26 J; L. LAVERTY. ASH SIPTING APPARATUS.

APPLICATION FILED JUNE 3. 1907.

3 SHEETS-SHEET 3.

JOHN L. LAVERTY, OF CAMBRIDGE, MASSACHUSETTS.

ASH-SIFTING APPARATUS.

Specification of Letters Patent.

Application filed June 3, 1907.

PatentedMay 26,.1908.

Serial No. 377,023.

To all whom it may concern:

Be it known that .1, JOHN L. LAVERTY, a citizen of the-United States, residing at Cambridge, in the county of Middlesex and State of Massachusetts, haveinvented certain new and useful Improvements in Ash-sifting Apparatus, of which the following is a specification. a

This invention contemplates certain new and useful improvements in ash sifters, and the invention has for'its object an improved construction of ash sifting apparatus which is attached preferably-as a permanent fixture to a stove underneath a fire box, and which is adapted to sift ashes clean-without the usual accompaniment of dirt or dust.

The invention also results in saving the grate, in producing a better draft underneath the bed of fuel because the ashes will not pile up as quickly as by the use of the ordinary pans, and which willoccupy less space in a room than the ordinary system now employed.

With these and other objects in view as will more fully appear as the description proceeds, the invention consists in certain constructions, arran ements and combinations of the parts that shall hereinafterfully describe and then point out the novel features in the appended claims.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction, of the means for effecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a transverse sectional view of a stove embodying the improvements of my invention. Fig. 2 is a transverse sectional view of different parts of the apparatus, showing them in juxtaposition. Fig. 3 is a longitudinal sectional view of the sieve.

Fig. 4 is a detail side elevation illustrating a modification hereinafter specifically referred to. Fig. 5 is a detail perspective view, partly broken away, of the cinder chute and its lid for the pail. Fig. 6 is a vertical sectional view thereof. Fig. 7 is a top plan view of the ash pan, and Figs. 8 and 9 are a transverse section, and a front elevation, respectively, of the means for supporting one end of the sieve and the cinder chute.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

Referring to the drawings the letter A designates a stove which may be of any type, construction or design, and which I have selected in the present instance merely for the purposes of illustration, B designates a grate of the stove, C an ash pit, and D the ash pit door.

In carrying out my invention I employ a sieve 1 which is preferably a permanent part of the stove structure or rather a permanent attachment thereto, and which is preferably formed of sheet metal with a transversely curved trough portion 2. at its bottom preferably extending the full length of the ash pit from the front to the back, said sieve also consisting of inclined sides 3, slopingtowards the'trough 2 and formed at their upper edges with longitudinal flanges .4 designed to be bolted, hinged or otherwise secured to the side walls of :the ash pit, underneath the grate. 'The side walls 3, as well as the trough or bottom portion 2 are formed with a plurality of perforations or openings 5,

which maybe of any predetermined size,

number, or arrangement. The stove A is formed on its front and back walls with inwardly projecting ledges 6 in which the ends of the sieve 1 fit, said ends being bolted o-r riveted thereto. An agitator in the nature of an Archimedean screw 7, provided with a tapering spiral 8 is mounted in the stove and within the sieve 1, the said screw being pro- .vided with rear and front gudgeons 9 and 10 journaled in apertures in the back and front of the stove respectively. The front gudgeon 10 is extended, as indicated at 11 and is designed .to receive a wrench 12 or other tool bywhich thescrew may be turned. The diameter of the spiral is such that the-edge thereof will preferablyjust about scrape over the surface of the sieve 1 as the screw is .rotated. A funnel 13 is bolted or riveted below the sieve 1 being provided for this purpose with an attaching flange 14, and the walls of this funnel slope inwardly and downwardly as shown and are adapted to direct ashes that work through the sieve into the ash pan 15. This latter is in the form of a rectangular box adapted to be slid into the bottom of the ash pit and provided with a bail 16 preferably mounted to be swung on the inner side of the ash pan when not in use and to'be rested on the bracket or ledge 17,

and drawn out of the stove.

The back wall of the stove is provided with a preferably integral downwardly extending casing 19 which in the present instance is rectangular as shown, and which is adapted to receive the upper end of a cinder or clinker chute 2.0, bolted or otherwise secured thereto. This chute 20 extends downwardly away from the back of the stove, and to the lower end of the chute a lid 21 is connected, preferably forming a permanent part of the chute. This lid or cover is provided with a hinged section 22 and both the hinged section and the other section of the lid are formed with a depending flange 23 adapted to extend around the pail or bucket 24 that is intended to receive the cinders or other unconsumed articles of fuel. The pail 24 is provided with a bail handle 25 adapted to be swung down within it and to rest upon the ledge or bracket 26. The hinged section 22 of the lid 21 may be provided with a knob 27 so that it may be conveniently raised, to permit the pail to be slipped outwardly so as to empty its contents. I

In the practical operation of my improved ash sifting apparatus, it will be manifest that by turning the handle or wrench 12, applied to the screw 7, the unconsumed particles of the fuel that are directed into the trough 2 by the inclined sides 3 of the sieve, will be carried rearwardly into the ash pit and the ashes will either be ground through the perforations 5 or fall through the perforations of the inclined sides 3, while the cin ders and larger unconsumed particles will be carried along by the spiral and separated effectually from the ashes and finally discharged through the outer end of the sieve into the chute 20. Thence they will fall into the pail or bucket 2 1 and may be used over again. The ashes which drop through the sieve will be directed by the funnel 13 into the ash pan 15, and the latter may be pulled out and emptied. It is obvious that the entire operation may be performed with a minimum of dust and dirt, and at repeated intervals without any inconvenience, so that the ashes and cinders will be prevented from becoming banked up in the ash pit to check the draft.

For an understanding of another concrete embodiment of my invention, and applied upon a larger scale, reference is to be had to Fig. 4, which illustrates a series of funnels or ash pans 28 upon the several floors of a building, the said ash pans 28 being intended to take the place of the ash. pans 15. These several ash pans 28 are connected to the upper ends of downwardly sloping pipes or chutes, all of which are connected at their lower ends to a discharge pipe 30 which may be built up within the walls of the building and which is intended to lead the ashes downwardly into a receptacle 31 in the cellar'or some other out of the way place. By this arrangement the tenants of the building on the different floors may easily empty their ashes without a particle of dust or dirt gaining access to the room, and such arrangement will be found especially desirable in apartment houses and similar buildings where the disposal of ashes is a factor that must be taken seriously into consideration.

Having thus described the invention, what is claimed as new is:

1. The combination of a stove, a sieve permanently mounted within the stove body under the grate thereof, an agitator cooperating with the sieve, a chute leading from the sieve and extending exterior of the stove, and an ash pan mounted within the stove under the sieve.

'2. The combination of-a stove, a sieve permanently mounted within the body of the stove under the grate thereof, the said sieve being formed with a trough portion, a screw conveyer mounted within the trough portion of the sieve, a chute leading from one end. of the trough and extending exterior of the stove, a receptacle for receiving the matter discharged through the chute, and an ash pan mounted within the stove under the sieve.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN L. LAVERTY. 

